Biodiversity > Mammal species, threatened:
Mammal species, threatened. Mammal species are mammals excluding whales and porpoises. Threatened species are the number of species classified by the IUCN as endangered, vulnerable, rare, indeterminate, out of danger, or insufficiently known.

CO2 Emissions per 1000:
CO2: Total Emissions (excluding land-use) Units: thousand metric tonnes of carbon dioxide. Figures expressed per thousand population for the same year.

CO2 emissions > Kt:
Carbon dioxide emissions are those stemming from the burning of fossil fuels and the manufacture of cement. They include carbon dioxide produced during consumption of solid, liquid, and gas fuels and gas flaring.

Current issues:
This entry lists the most pressing and important environmental problems. The following terms and abbreviations are used throughout the entry:

Endangered species > Mammal species > Number:
Mammal species are mammals excluding whales and porpoises. Threatened species are the number of species classified by the IUCN as endangered, vulnerable, rare, indeterminate, out of danger, or insufficiently known."

Forest area > Sq. km > Per capita:
Forest area is land under natural or planted stands of trees, whether productive or not. Per capita figures expressed per 1,000 population.

Water > Severe water stress:
Percent of country's territory under severe water stressUnits: Percent of Land AreaUnits: This data is derived from the WaterGap 2.1 gridded hydrological model developed by the Center for Environmental Systems Research, University of Kassel, Germany. The modellers derived, for each country, grid cell by grid cell estimates of whether the water consumption exceeds 40 percent of the water available in that particular grid cell. These were then converted to land area equivalents in order to calculate the percentage of the territory under severe water stress.